Exhibit 21 SCHEDULE OF SUBSIDIARIES OF HIGHWOODS PROPERTIES, INC. 1. Highwoods/Forsyth Limited Partnership 2. Highwoods/Florida GP Corp. 3. Highwoods Realty GP Corp. 4. Highwoods/Tennessee Properties, Inc. 5. Highwoods/Florida Holdings GP, L.P. 6. AP-GP Southeast Portfolio Partners, L.P. 7. Highwoods/Tennessee Holdings GP, L.P. 8. Highwoods/Tennessee Holdings, L.P. 9. AP Southeast Portfolio Partners, L.P. 10. Highwoods/Florida Holdings, L.P. 11. Forsyth Properties Services, Inc. 12. Highwoods Services, Inc. 13. Southeast Realty Options Corp.